Question

Mrs. Jackson surveyed 8 random band members and found that 3members play more than one instrument. Use her results topredict how many of Schools of the Arts 152 band members playmore than one instrument.

Answer 1

Step 1:

Use the probability formula

Total number of board members = 152

$\text{Probability that a member play more than one instrument = }\frac{3}{8}$

Step 2

To find the number of board members that can play more than one instrument, you will multiply the probability by the total number.

$\begin{gathered} \text{Number of members in the board that can play more than } \\ \text{one instrument = 152 }\times\text{ }\frac{3}{8} \\ =\text{ }\frac{152\text{ }\times\text{ 3}}{8} \\ =\text{ 57 members} \end{gathered}$

Final solution

57 members